The female guests staying at a hot spring inn are summoned by a perverted masseur skilled in obscene, lewd massages. Unaware they are being secretly filmed, the women submit to his treatments as he delivers passionate services. The first is a mature office lady with a relaxed body, who melts into euphoric pleasure from the overwhelmingly pleasurable massage and, upon taking his cock, can't hold back and lets out shameless moans. The second is a 36-year-old cram school teacher who writhes her slender body in ecstasy under the lewd treatment. When he chooses her vagina as the pressure point for acupressure, she trembles and squirms in overwhelming sensation. The third is a serious-looking black-haired, short-haired office lady who shivers her slim body during the massage and consents to the use of his penis. As he pounds her from behind, she writhes in ecstasy, completely enveloped by pleasure.